Search

CN-121992821-A - Construction method of high-low piles of high-rise building with full basement

CN121992821ACN 121992821 ACN121992821 ACN 121992821ACN-121992821-A

Abstract

The invention discloses a construction method of high-low piles of a high-rise building of a full basement, which comprises the following steps of S1 deepening a drawing, reasonably carrying out field distribution, constructing and paying off to define a construction range, mechanically entering a field, S2 reserving a high pile operation platform, carrying out high pile construction, excavating a low pile working face, S3 carrying out basement bottom plate construction after carrying out bottom pile construction according to the drawing, S4 carrying out basement side wall and top plate construction, building positive and negative zero foundation and bottom plate construction, S5 carrying out superstructure construction, S6 carrying out basement side wall outer waterproof layer and protective layer construction, and S7 carrying out backfill on a basement side wall outer backfill area. The high pile working platform is filled in advance, high and low piles are constructed simultaneously, the step of backfilling the high piles after the basement construction is completed is reduced, the influence of the age of the top plate of the basement on the high piles construction is avoided, the construction efficiency is improved, the gap between the side wall of the basement and the high pile working platform can be reduced by matching with small slope, and the compactness is improved by filling foam concrete.

Inventors

  • CAO CHAO
  • YANG WEI
  • WANG NING

Assignees

  • 中冶建工集团有限公司

Dates

Publication Date
20260508
Application Date
20251128

Claims (10)

  1. 1. A construction method of high-low piles of a full basement high-rise residence is characterized by comprising the following construction steps: s1, deepening a drawing, reasonably carrying out field distribution, constructing and paying-off to define a construction range, and mechanically entering a field; S2, excavating earthwork to a low pile working surface and reserving a high pile working platform for high pile construction; S3, constructing a basement bottom plate and a foundation after constructing the bottom pile according to the drawing; S4, constructing a side wall and a top plate of the basement, constructing a positive and negative zero foundation and a bottom plate of the building; s5, construction of an upper structure; S6, constructing a waterproof layer and a protective layer outside the side wall of the basement; s7, backfilling the backfilling area outside the side wall of the basement.
  2. 2. The method for constructing high-low piles of high-rise building with full basement as set forth in claim 1, wherein said step S1 comprises a process plant and a temporary road, said process plant being disposed on one side of said temporary road and being connected to each construction area by said temporary road.
  3. 3. The method for constructing high-low piles of high-rise building with full basement as set forth in claim 1, wherein in said step S2, said earth excavation is carried out by means of island excavation and basin excavation, and said earth excavation is carried out to the working face of the foundation pile, and said construction of the foundation pile is carried out in synchronization with compaction of the working platform of the high-rise building.
  4. 4. The method for constructing the high-low pile of the high-rise building of the full basement according to claim 1, wherein the low pile working face is provided with a high pile working platform according to the high pile position, the high pile working platforms are uniformly arranged according to the comprehensive elevation, the high pile working face is provided, and a slope is reserved between the high pile working platform and the low pile working face.
  5. 5. The construction method of the high-low piles of the full-basement high-rise building is characterized in that the high-pile operation platform is compacted by mechanical vibration according to backfill outside the basement, the comprehensive elevation is the elevation of the pile top of the bored pile and the elevation of the bottom of the terrace cushion layer, and the combined boring pile, the ground beam and the foundation excavation amount are determined.
  6. 6. The method for constructing the high-low piles of the high-rise building of the full basement according to claim 3, wherein the low pile working face can be synchronously constructed on the high pile working platform, and basin-type excavation is adopted for the low pile working face to avoid construction interference of the low pile working face and the high pile working platform.
  7. 7. The method for constructing the high-low piles of the high-rise building of the full basement according to claim 2, wherein the temporary road is combined with an actual road path after the site construction is completed, and the temporary road is arranged as a loop on site.
  8. 8. The construction method of the high-low piles of the high-rise building with the full basement according to claim 1 is characterized in that in the step S3, the bottom plate is divided according to post-cast strips, basement foundations, basement side walls and basement top plates are cast block by block, and the basement top plates, positive and negative zero foundations of the building and the bottom plate are cast together.
  9. 9. The method for constructing high-low piles of high-rise building with full basement as set forth in claim 1, wherein said step S5 further comprises a basement drainage blind ditch, said basement drainage blind ditch being disposed around the basement for one week to prevent accumulation of groundwater.
  10. 10. The method for constructing high-low piles of high-rise building with full basement as set forth in claim 1, wherein the backfill area in the step S6 is a gap between the side wall of basement and the working platform of high piles, and the gap can be filled with foam concrete tightly to ensure the structural strength of basement.

Description

Construction method of high-low piles of high-rise building with full basement Technical Field The invention relates to the technical field of building construction, in particular to a high-low pile construction method for a full basement high-rise residence. Background Basement construction is one of the most complex technology and most strict requirement links in building engineering, so that the foundation safety and the use function of the whole building are directly determined. The method comprises the following steps of (1) constructing temporary roads, material yards and processing sites in a basement, (2) constructing pile foundations, side walls and top plates of the basement, (3) transferring the temporary roads, the material yards and the processing sites to the top plates of the basement, and (4) backfilling the side walls of the basement after 28 days of the side walls of the basement are reached and the waterproof construction is completed, constructing pile foundations outside the basement of a main building, and constructing a main structure upwards after pile foundation detection is completed. In this way, a material transferring field is needed, the safety of the structural top plate can be influenced when the structural top plate is driven on the structural top plate of the basement, the outer wall of the basement can be backfilled after waiting for the concrete of the side wall of the basement to reach the age, and the construction period can be greatly prolonged when the subsequent construction is carried out. Therefore, a new method or equipment for adjusting the construction of high-low piles designed by a building crossing a basement is urgently needed to be explored, the problems of long construction period and insufficient backfill compactness of the side wall of the basement in a limited operation space are solved, and the construction cost caused by continuous and rigid replacement of a processing field and a temporary road is reduced. Disclosure of Invention In view of the above, the present invention aims to provide a method for constructing high-low piles in a high-rise building with a full basement. The method solves the problems of prolonged construction period, uncompacted backfilling of the basement and higher construction cost caused by construction operation due to high-low piles designed by crossing the basement by the building. The invention discloses a construction method of high-low piles of a full basement house, which comprises the following construction steps: s1, deepening a drawing, reasonably carrying out field distribution, constructing and paying-off to define a construction range, and mechanically entering a field; s2, reserving a high pile operation platform, performing high pile construction, and excavating a low pile working face; s3, constructing a basement bottom plate after constructing the bottom pile according to the drawing; S4, constructing a side wall and a top plate of the basement, constructing a positive and negative zero foundation and a bottom plate of the building; s5, construction of an upper structure; S6, constructing a waterproof layer and a protective layer outside the side wall of the basement; s7, backfilling the backfilling area outside the side wall of the basement. Further, the field layout in the step S1 includes a processing plant and a temporary road, where the processing plant is disposed on one side of the temporary road and may be communicated with each construction area by the temporary road. Further, in the step S2, the high pile working platform is uniformly set according to the comprehensive elevation, so as to provide a high pile working surface, and a slope is arranged between the high pile working platform and the low pile working surface. And the comprehensive elevation is the elevation of the pile top of the bored pile and the elevation of the floor cushion layer, and is determined by combining the amounts of the bored pile, the ground beam and the foundation excavation. Furthermore, the low pile working face can be synchronously constructed on the high pile working platform, and basin-type excavation is adopted for the low pile working face to avoid construction interference of the low pile working face and the high pile working platform. Further, the temporary road is combined with an actual road path after the site construction is completed. Further, the bottom plate is divided according to the post-pouring zone, and pouring of the basement foundation, the basement side wall and the basement top plate is completed block by block. And the basement roof and the positive and negative zero foundations and the bottom plate of the building are constructed and poured together. Further, in the step S5, a basement drainage blind ditch is further included, and the basement drainage blind ditch is arranged around the basement for one circle, so that accumulation of groundwater is prevented. Further, in the step S6, the backf